<bdo> element with various dir attributes:

bdo (no dir)د.إ.123.45
bdo dir=ltrد.إ.123.45
bdo dir=rtlد.إ.123.45
bdo dir=autoد.إ.123.45
bdo dir=fooد.إ.123.45

<bdi> element with various dir attributes:

bdi (no dir)د.إ.123.45
bdi dir=ltrد.إ.123.45
bdi dir=rtlد.إ.123.45
bdi dir=autoد.إ.123.45
bdi dir=fooد.إ.123.45